US Army Corps of Engineers

McNary Dam

Wednesday December 17, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 173.80 149.60 20.20 337.83 266.70 71.13
2 173.60 149.50 20.10 337.75 266.85 70.90
3 173.30 149.20 20.10 337.78 266.77 71.01
4 173.60 149.70 19.80 337.38 267.17 70.21
5 173.80 150.40 19.40 337.06 267.65 69.41
6 166.40 142.50 20.00 337.22 267.80 69.42
7 157.00 132.30 20.70 337.52 266.92 70.60
8 145.10 120.30 20.70 337.47 266.44 71.03
9 144.80 119.90 20.90 337.58 266.12 71.46
10 144.80 119.50 21.30 337.76 266.20 71.56
11 142.00 116.60 21.40 337.69 266.01 71.68
12 131.90 106.50 21.40 337.78 266.39 71.39
13 159.30 133.90 21.40 337.62 266.72 70.90
14 161.10 135.80 21.40 337.82 266.71 71.11
15 161.50 135.80 21.70 337.89 266.70 71.19
16
17
18
19
20
21
22
23
24
AVG 158.80 134.10 20.70 337.61 266.74 70.87
MAX 173.80 150.40 21.70 337.89 267.80 71.68
MIN 131.90 106.50 19.40 337.06 266.01 69.41